Coffee-roaster.



LE. BURNHM@ COFFEE ROASTEBL l I vAl?PLIUA'IIOBT FILED SEPT. 14, 1908. l @2&40 Patented. May 4, 1909. I

inventos 2 SHEETS-SHEET 1.

attenua# E. E. BURNHAM.

COFFEE MASTER.

I IIIIIIIIIIIIIIIIII PT. 14, 19.08.

@QQQSD Patented May 4, 1909.

ZZZZ ETS-SHBIET 2.

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TWWHHHHH' ooFFEE-Roiis'rnn.

Specification of Letters Patent.

Patented May 4, 1909.

Application filed September 14, 1908. Serial No. 452,886.

To all] wz-om it n'ia/g/ concer/Ii.'

Beit known that l, Ensox E. BUnNiL/m, a citizen of the United States, residing' at Amitie, in the parish of '.lanripahoa and Stat-c of Louisiana, have invented certain new and useful improvements in (oll'ce-loastcrs;

and l do hereby declare the following to be a full, clear, and exact description of the j invention, such as will enable others skilled in tlsc art to which it appel' airis to make l and use the same, reference being 'had to the accompanying' drawings7 and to the tigures of reference. marked thereon, which form a i partof this spec-iiication.

- My invention relates to improvements in machines t'or roasting eotl'ee, popping corn, drying granular material, etc.

One object of the invention is to provide a simple and practical machine of this charactier which may be placed upon a stove and operated either manually or by a spi-ineI motor, and which will quiet-.ly and effectively roast collec o' `ierforin analogous worli.

Another object of the invention is to provide a machine of this character with an iin- I proved revolvingI drum for# the cotiee or granular' material to be acted upon by the heat, the drum being; so constructed that it will have a large capacity and be balanced to require little power to operate it and being also so constructed that the cotfee will be continuously rolled from the center in an outward direction and exposed at all points to an even heat.

A further object of the invention is to provide an improved spring,` motor for operating' the roasting drum.

lith the above andother obliects in view.

is also open but is adapted to be closed by a substai'itially scini-twlindrical cover 2 hinged upon one side, as at il, and providi-al upon its other side with a fastener 'l. The cover 2 is adapted to routine the heat within the bod \r and around '.1 rcvolublc drum 5 which is removably moi'iuted and which ma".v be rotated either i'iianually or automatically by a motor.

'lhc drum 5 is of peculiar coiistructioirconsistin'g,` of a cylindrical body portion vof woven wire fabric or other' reticulate inatcrial, a-[iXed end or head 7, a removable end or head 8, a central longitudinal shaft 9, and a. plurality of curved or angular partition plates l() which divide the interior of the drum into a plurality oi" longitudinal compartments il. 'lhe shaft 9 is arranged for rotation in vertical bearing' slots or recesses 12 formed centrally in the ends o f the body .l at their upper edges and owing` to this construction thc drum may be readily removed from the body or replaced therein when the cover 2 is open. l. preferably provide four ofthe partition plates l() in the drum, as clearly shown in Fig'. it, and they are arranged so as to provide air spaces 13 between them and hence between the compartincnts ll formed by them. By arranging' said partitions as shown, it will be seen that heated air may reacl'i every partof the walls of cach ol' the apartments so that the cotl'ee or other material within them ..vill be evenly heated. Said partitions also permit the drum to el- 'fectivclyoperate *upon a largic quantity of oltce since the total ouantitv is divided into the invention consists of the .novel features of Construction and the combination and ai'H rangement ot parts hereinatter fully described and claimed, and illustrated in the accompanying drawings, in which- Figure 'l is a front elevation ofthe machine showingit provided with a crank handle g Fig. 2 is a vertical longitudinal section showiner a springl motor connected to it for operating,r its rotary drum 3 Fig. 3 is an end elevation g of the machine shown in Fig. 2 looking toward the motor; Fig. 4 is a vertical `transverse section and Fig. 5 is a longitudinal scction through the. drum.

My invention comprises a body l of rectangular or other shape having a flared lower portion Without a bottom to rest upon a stove or other heater.

'vcly ltreated in the several compariments.

These compartments formed by the parti-- tions cause theI collec to roll continuously from the center' to the outside of thc drum and back again, thereby causing,l it to be evenly heated and roasted, and said conipartinents furthermore cause the coll'ce to balance the drum and require very little power to rotate it. ll'hcn the drum is rcmoved from the` body l. its hcad 8 may be rcmoved to permit roasted col'ce to be rcnioved from the ci ii'ipartnients Ill. and replaced by green colli-e which is to be roasted The head or cover S lois a surrounding flange and is preferably sccnred in position by means of one or more set screws 14 arranged in said flange.

The shaft 9 of the drum .may have one of The topof thebodyl its ends extended and carrying' a crank handle 15 (as shown in Fig. l) by means of which it may be manually rotated; but I preferably employ a spring motor for this purpose. This motor is in the forni of an attachment which may be bolted or otherwise secured to one end of the body 1 and as in its frame 16 a. tan 2() which is geared to one ol the shalts of the motor, as shown at 21,'

and which is adapted to create a blast of air Within the frame 16 so as to cool the spring and other portions olI the inotoi'.

'22 denotes the winding shaft olI the motor to which may be applied a winding crank handle. l

From the foregoing it will be seen that my invention provides an exceedingly simple and practical machine by means of which coffee may be quickly and effectively roasted, pop corn may bo popped, granular material may be dried, etc. The peculiar construction of the drum causes the material within it to be quickly, thoroughly, and evenly heated, and so counterbalances it that yery little power `will be required to rotate it.

` Having thus described my invention what I claim is:

1. A machine of thecharacter described comprising a casing, a horizontal shaft therein, a drum of reticulate material upon the shaft and partitions in said drum dividing it into separate compartments and spaced apart to provide air spaces between them.

2. A machine of' the character described comprising a casing having an open bottom to rest upon a stove, a` cover for the top of the casing, a drum of reticulate material, a shaft for said drum removably karranged in bearings in the casing, partitions in said drum dividing it into longitudinal compartments, said partitions being spaced apart to provide air spaces between them and means for rotating said shaft.

a3. A machine of the character described comprising a casing having an open bottom to rest upon a stove, acover for the top ofthe hasing, a drum of reticulate material, a shaft for said drum removably arranged in bearings in the casing, partitions in said drum dividing it into longitudinal compartments, said partit-ions being spaced apart to rovide air spaces between them, a removab e head at one end o'l' said drum, means for securing said removable head upon the drum and means for rotating said. shaft.

4. A machine'of the character vdescribed comprising a casing having an open bottom to rest upon a stove, a cover for the top ofthe. casing, a drum'o'f reticulate material, a shaft for said drum removably arranged in bearings in the casing, partitions in said drum dividing it into longitudinal compartments,

said partitions being spaced apart to provide air spaces between them, a spring motor having a driving gear and a gear upon one end of said shaft to mesh with the gear ofthe motor .when said shaft is arranged in the bearings in the casing.

A machine of the character described comprising a casing having an open bottom to rest upon a stove, a cover forthe top of the casing, a drum of reticulate material, a shaft Jfor said drum removably arranged in bearings in the casing, partitions in said drum dividing it int-o longitudinal compartments, said partitions being spaced apart to provide air spaces between them, .a gear upon the drum shaft, a spring motor having its frame or body arranged upon one end of the casing and provided with a driving gear to mesh with the gear on the drum shaft when the latter is engaged with its bearings in the casing, and a tan driven'by said Amotor for cooling the works of the latter.

In testimony Whereofl hereunto atlix my signature in'the presence ot two witnesses.

l EDSON E. BURNHAM.

Witnesses:

s vHYroLrrE MiXoN,

R. H. SeAaLE. 

